{"id":10391,"date":"2026-02-24T08:00:00","date_gmt":"2026-02-24T06:00:00","guid":{"rendered":"https:\/\/kopar.fi\/?p=10391"},"modified":"2026-05-27T10:12:20","modified_gmt":"2026-05-27T07:12:20","slug":"how-to-choose-the-right-silage-filter","status":"publish","type":"article","link":"https:\/\/kopar.fi\/en\/kuinka-valita-oikea-siilosuodatin\/","title":{"rendered":"How to choose the right hose filter?"},"content":{"rendered":"<p>The choice of the right bag filter depends on the characteristics of the material to be treated, the flow rates and the operating conditions. The main selection criteria are the particle size of the material, air volumes, pressure conditions and ease of maintenance. The filter must meet the requirements of the process in terms of both capacity and design. In the following, we address the key questions that will help you find the right silo filter for your industrial process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is the function of a bag filter and why is it important?<\/h2>\n\n\n\n<p>A bag filter removes particles from the air when bulk material is transported or handled pneumatically. It prevents dust from entering the environment when filling or unloading silos. Without effective air filtration, dust emissions can cause environmental problems, reduce occupational safety and violate environmental regulations.<\/p>\n\n\n\n<p>In pneumatic conveying, the material moves with the air flow in the pipeline. When the material arrives at the receiving container or silo, it settles to the bottom of the container by gravity. However, the air used for transport must be removed in a controlled manner, and at this point a bag filter separates the particles from the air stream before releasing the air into the environment.<\/p>\n\n\n\n<p>Effective filtering also protects the equipment. Dust can wear out piping, valves and other components, increasing the need for maintenance and shortening the life of the system. A well-designed and selected silo filter will significantly reduce these problems.<\/p>\n\n\n\n        <div\n            class=\"seoaic-multistep-form\"\n            data-prefix=\"seoaic_ms_6a2626b05ccdb_\"\n            data-redirecturl=\"\"\n        >\n            <div class=\"seoaic-ms-chat-header\">\n                <div class=\"seoaic-ms-chat-header-icon-wrapper\">\n                    <div class=\"seoaic-ms-chat-header-icon\"><\/div>\n                <\/div>\n                                <div class=\"seoaic-ms-close-wrapper\">\n                    <span class=\"seoaic-ms-close dashicons dashicons-no-alt\" title=\"Close form\"><\/span>\n                <\/div>\n            <\/div>\n\n            <div class=\"seoaic-ms-closed-msg-wrapper seoaic-ms-open-click\" title=\"Open lead form\">\n                                    <div class=\"seoaic-ms-closed-msg-container\">\n                        <div class=\"seoaic-ms-closed-msg\">\n                            <div class=\"seoaic-ms-chat-icon\"><\/div>\n                            <div class=\"seoaic-ms-chat-content\">\n                                                                    <div class=\"seoaic-ms-closed-msg-title-wrapper\">\n                                        <span class=\"seoaic-ms-closed-msg-title\">Hi, how are you doing?<\/span>\n                                    <\/div>\n                                                                        <div class=\"seoaic-ms-closed-msg-text-wrapper\">\n                                        <span class=\"seoaic-ms-closed-msg-text\">Can I ask you something?<\/span>\n                                    <\/div>\n                                                                <\/div>\n                            <div class=\"seoaic-ms-closed-msg-close-wrapper\">\n                                <span class=\"seoaic-ms-closed-msg-close-icon dashicons dashicons-no-alt\" title=\"Close\"><\/span>\n                            <\/div>\n                        <\/div>\n                        <div class=\"seoaic-ms-clised-msg-connector\"><\/div>\n                    <\/div>\n                                    <div class=\"seoaic-ms-open seoaic-ms-open-click\" title=\"Open lead form\">\n                    <span class=\"dashicons dashicons-testimonial\"><\/span>\n                <\/div>\n            <\/div>\n\n            <div class=\"seoaic-ms-steps-wrapper\">\n                <div class=\"seoaic-ms-steps\">\n                                            <div\n                            class=\"seoaic-ms-step\"\n                            id=\"seoaic_ms_6a2626b05ccdb_#1\"\n                            data-type=\"single\"\n                            data-autostep=\"\"\n                        >\n                            <div class=\"seoaic-ms-bot-icon\"><\/div>\n                            <div class=\"seoaic-ms-step-question-wrapper\">\n                                <div class=\"seoaic-ms-step-question\" data-origquestion=\"Hei! Huomaan, ett\u00e4 olet tutustumassa siilosuodattimien valintaan. Monet teollisuuden prosessip\u00e4\u00e4llik\u00f6t kohtaavat saman haasteen \u2013 oikean suodatinratkaisun l\u00f6yt\u00e4minen pneumaattiseen kuljetukseen tai siilojen t\u00e4ytt\u00f6\u00f6n voi olla haastavaa. Mik\u00e4 kuvaa parhaiten tilannettasi juuri nyt?\">Hei! Huomaan, ett\u00e4 olet tutustumassa siilosuodattimien valintaan. Monet teollisuuden prosessip\u00e4\u00e4llik\u00f6t kohtaavat saman haasteen \u2013 oikean suodatinratkaisun l\u00f6yt\u00e4minen pneumaattiseen kuljetukseen tai siilojen t\u00e4ytt\u00f6\u00f6n voi olla haastavaa. Mik\u00e4 kuvaa parhaiten tilannettasi juuri nyt?<\/div>\n                            <\/div>\n                            <div class=\"seoaic-ms-step-content\">\n                                                                    <div class=\"seoaic-ms-buttons-wrapper\">\n                                                                                    <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#2a\"\n                                                data-origtext=\"Etsin ratkaisua aktiiviseen tarpeeseen\"\n                                            >Etsin ratkaisua aktiiviseen tarpeeseen<\/button>\n                                                                                        <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#2b\"\n                                                data-origtext=\"Vertailen vaihtoehtoja ja tutkin markkinoita\"\n                                            >Vertailen vaihtoehtoja ja tutkin markkinoita<\/button>\n                                                                                <\/div>\n                                                                <\/div>\n                                                            <div class=\"seoaic-ms-step-answers-wrapper\"><\/div>\n                                                        <\/div>\n                                                <div\n                            class=\"seoaic-ms-step hide\"\n                            id=\"seoaic_ms_6a2626b05ccdb_#2a\"\n                            data-type=\"single\"\n                            data-autostep=\"\"\n                        >\n                            <div class=\"seoaic-ms-bot-icon\"><\/div>\n                            <div class=\"seoaic-ms-step-question-wrapper\">\n                                <div class=\"seoaic-ms-step-question\" data-origquestion=\"Selv\u00e4 \u2013 kuulostaa silt\u00e4, ett\u00e4 sinulla on konkreettinen tarve. Monet prosessip\u00e4\u00e4llik\u00f6t tulevat meille juuri t\u00e4ss\u00e4 vaiheessa. Mik\u00e4 on t\u00e4rkein haaste, johon haet ratkaisua?\">Selv\u00e4 \u2013 kuulostaa silt\u00e4, ett\u00e4 sinulla on konkreettinen tarve. Monet prosessip\u00e4\u00e4llik\u00f6t tulevat meille juuri t\u00e4ss\u00e4 vaiheessa. Mik\u00e4 on t\u00e4rkein haaste, johon haet ratkaisua?<\/div>\n                            <\/div>\n                            <div class=\"seoaic-ms-step-content\">\n                                                                    <div class=\"seoaic-ms-buttons-wrapper\">\n                                                                                    <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"P\u00f6lyp\u00e4\u00e4st\u00f6t tai ymp\u00e4rist\u00f6m\u00e4\u00e4r\u00e4ysten t\u00e4ytt\u00e4minen\"\n                                            >P\u00f6lyp\u00e4\u00e4st\u00f6t tai ymp\u00e4rist\u00f6m\u00e4\u00e4r\u00e4ysten t\u00e4ytt\u00e4minen<\/button>\n                                                                                        <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"Nykyinen suodatin ei vastaa prosessin kapasiteettia\"\n                                            >Nykyinen suodatin ei vastaa prosessin kapasiteettia<\/button>\n                                                                                        <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"Huollettavuus ja seisokkiajat ovat ongelma\"\n                                            >Huollettavuus ja seisokkiajat ovat ongelma<\/button>\n                                                                                        <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"Rakennan tai uusin pneumaattista kuljetuslinjaa\"\n                                            >Rakennan tai uusin pneumaattista kuljetuslinjaa<\/button>\n                                                                                <\/div>\n                                                                <\/div>\n                                                            <div class=\"seoaic-ms-step-answers-wrapper\"><\/div>\n                                                        <\/div>\n                                                <div\n                            class=\"seoaic-ms-step hide\"\n                            id=\"seoaic_ms_6a2626b05ccdb_#2b\"\n                            data-type=\"single\"\n                            data-autostep=\"\"\n                        >\n                            <div class=\"seoaic-ms-bot-icon\"><\/div>\n                            <div class=\"seoaic-ms-step-question-wrapper\">\n                                <div class=\"seoaic-ms-step-question\" data-origquestion=\"Hyv\u00e4 l\u00e4ht\u00f6kohta. Oikean siilosuodattimen valinta vaikuttaa suoraan prosessin toimintavarmuuteen ja kustannustehokkuuteen \u2013 kannattaa siis tutustua huolella. Mik\u00e4 seuraavista kuvaa parhaiten prosessiasi?\">Hyv\u00e4 l\u00e4ht\u00f6kohta. Oikean siilosuodattimen valinta vaikuttaa suoraan prosessin toimintavarmuuteen ja kustannustehokkuuteen \u2013 kannattaa siis tutustua huolella. Mik\u00e4 seuraavista kuvaa parhaiten prosessiasi?<\/div>\n                            <\/div>\n                            <div class=\"seoaic-ms-step-content\">\n                                                                    <div class=\"seoaic-ms-buttons-wrapper\">\n                                                                                    <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"Pneumaattinen kuljetuslinja ja vastaanottosiilon suodatus\"\n                                            >Pneumaattinen kuljetuslinja ja vastaanottosiilon suodatus<\/button>\n                                                                                        <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"Siilojen t\u00e4ytt\u00f6 tai purku tankkiautoilla\"\n                                            >Filling or emptying silos with tanker lorries<\/button>\n                                                                                        <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"Jauhemaisen tai p\u00f6lyisen materiaalin k\u00e4sittely\"\n                                            >Jauhemaisen tai p\u00f6lyisen materiaalin k\u00e4sittely<\/button>\n                                                                                        <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                                                data-origtext=\"En ole viel\u00e4 varma \u2013 haluan lis\u00e4tietoa\"\n                                            >I'm not sure yet - I want more information<\/button>\n                                                                                <\/div>\n                                                                <\/div>\n                                                            <div class=\"seoaic-ms-step-answers-wrapper\"><\/div>\n                                                        <\/div>\n                                                <div\n                            class=\"seoaic-ms-step hide\"\n                            id=\"seoaic_ms_6a2626b05ccdb_#3\"\n                            data-type=\"contact_fields\"\n                            data-autostep=\"\"\n                        >\n                            <div class=\"seoaic-ms-bot-icon\"><\/div>\n                            <div class=\"seoaic-ms-step-question-wrapper\">\n                                <div class=\"seoaic-ms-step-question\" data-origquestion=\"Kiitos \u2013 se auttaa meit\u00e4 ymm\u00e4rt\u00e4m\u00e4\u00e4n tilanteesi. Koparin asiantuntijat ovat auttaneet teollisuuden prosessip\u00e4\u00e4llik\u00f6it\u00e4 l\u00f6yt\u00e4m\u00e4\u00e4n oikean EMJET-siilosuodatinratkaisun vaativimpiinkin kohteisiin. J\u00e4t\u00e4 yhteystietosi, niin oikea henkil\u00f6 ottaa sinuun yhteytt\u00e4.\">Kiitos \u2013 se auttaa meit\u00e4 ymm\u00e4rt\u00e4m\u00e4\u00e4n tilanteesi. Koparin asiantuntijat ovat auttaneet teollisuuden prosessip\u00e4\u00e4llik\u00f6it\u00e4 l\u00f6yt\u00e4m\u00e4\u00e4n oikean EMJET-siilosuodatinratkaisun vaativimpiinkin kohteisiin. J\u00e4t\u00e4 yhteystietosi, niin oikea henkil\u00f6 ottaa sinuun yhteytt\u00e4.<\/div>\n                            <\/div>\n                            <div class=\"seoaic-ms-step-content\">\n                                                                    <div class=\"seoaic-ms-contact-fields-container\">\n                                        <div class=\"seoaic-ms-contact-fields-wrapper\">\n                                                                                            <div class=\"seoaic-ms-contact-field-content\">\n                                                    <label for=\"seoaic_ms_6a2626b05ccdb_#3_0\">Name<\/label>\n                                                                                                                <div class=\"\">\n                                                                <input\n                                                                    type=\"text\"\n                                                                    id=\"seoaic_ms_6a2626b05ccdb_#3_0\"\n                                                                    data-label=\"Nimi *\"\n                                                                    class=\"seoaic-ms-contact-field\"\n                                                                    required\n>\n                                                            <\/div>\n                                                                                                        <\/div>\n                                                                                                <div class=\"seoaic-ms-contact-field-content\">\n                                                    <label for=\"seoaic_ms_6a2626b05ccdb_#3_1\">Email<\/label>\n                                                                                                                <div class=\"\">\n                                                                <input\n                                                                    type=\"email\"\n                                                                    id=\"seoaic_ms_6a2626b05ccdb_#3_1\"\n                                                                    data-label=\"S\u00e4hk\u00f6posti *\"\n                                                                    class=\"seoaic-ms-contact-field\"\n                                                                    required\n>\n                                                            <\/div>\n                                                                                                        <\/div>\n                                                                                                <div class=\"seoaic-ms-contact-field-content\">\n                                                    <label for=\"seoaic_ms_6a2626b05ccdb_#3_2\">Type your phone number here<\/label>\n                                                                                                                <div class=\"\">\n                                                                <input\n                                                                    type=\"tel\"\n                                                                    id=\"seoaic_ms_6a2626b05ccdb_#3_2\"\n                                                                    data-label=\"Puhelinnumero\"\n                                                                    class=\"seoaic-ms-contact-field\"\n                                                                    required\n>\n                                                            <\/div>\n                                                                                                        <\/div>\n                                                                                                <div class=\"seoaic-ms-contact-field-content\">\n                                                    <label for=\"seoaic_ms_6a2626b05ccdb_#3_3\">Company<\/label>\n                                                                                                                <div class=\"\">\n                                                                <input\n                                                                    type=\"text\"\n                                                                    id=\"seoaic_ms_6a2626b05ccdb_#3_3\"\n                                                                    data-label=\"Yritys\"\n                                                                    class=\"seoaic-ms-contact-field\"\n                                                                    required\n>\n                                                            <\/div>\n                                                                                                        <\/div>\n                                                                                        <\/div>\n                                    <\/div>\n                                                                        <div class=\"seoaic-ms-buttons-wrapper\">\n                                                                                    <button\n                                                data-step-id=\"seoaic_ms_6a2626b05ccdb_#4\"\n                                                data-origtext=\"L\u00e4het\u00e4 yhteydenotto\"\n                                            >Send a contact<\/button>\n                                                                                <\/div>\n                                                                <\/div>\n                                                            <div class=\"seoaic-ms-step-answers-wrapper\"><\/div>\n                                                        <\/div>\n                                                <div\n                            class=\"seoaic-ms-step hide\"\n                            id=\"seoaic_ms_6a2626b05ccdb_#4\"\n                            data-type=\"text\"\n                            data-autostep=\"\"\n                        >\n                            <div class=\"seoaic-ms-bot-icon\"><\/div>\n                            <div class=\"seoaic-ms-step-question-wrapper\">\n                                <div class=\"seoaic-ms-step-question\" data-origquestion=\"Kiitos yhteydenotostasi! \ud83c\udf89\">Thank you for getting in touch! \ud83c\udf89<\/div>\n                            <\/div>\n                            <div class=\"seoaic-ms-step-content\">\n                                                                            <div class=\"seoaic-ms-text-message-wrapper\">\n                                                Tietosi on vastaanotettu. Koparin tiimi k\u00e4y pyynt\u00f6si l\u00e4pi ja ottaa sinuun yhteytt\u00e4 keskustellakseen siilosuodatinratkaisuista tilanteesi mukaan.                                            <\/div>\n                                                                                        <div class=\"seoaic-ms-text-message-wrapper\">\n                                                Arvostamme kiinnostustasi \u2013 me k\u00e4sittelemme sen kuten ei kukaan muu.                                            <\/div>\n                                                                        <\/div>\n                                                    <\/div>\n                                        <\/div>\n                <div class=\"seoaic-multistep-progress-wrapper\">\n                    <div class=\"seoaic-multistep-progress-percent\"><\/div>\n                    <div class=\"seoaic-multistep-progress\">\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n        \n\n\n\n<h2 class=\"wp-block-heading\">What factors influence the choice of hose filter?<\/h2>\n\n\n\n<p>The properties of the material largely determine the need for filtration. Particle size, humidity, temperature and the chemical nature of the material all influence the choice of filter fabrics and filter design. For example, very fine materials such as cement, fly ash or talc require a denser filter fabric than coarser materials.<\/p>\n\n\n\n<p>The airflow and pressure conditions in the process are another key factor. The capacity of the filter must match the volumetric flows in the system to keep pressure losses under control. A filter that is too small will cause high back pressure, which will reduce transport efficiency and increase energy consumption. Excessive pressure can also damage filter fabrics.<\/p>\n\n\n\n<p>Material choices are influenced by the operating environment. Outdoor filters need weather protection and possibly heating to prevent condensation. In hazardous areas, electrostatic properties and structural grounding must be taken into account.<\/p>\n\n\n\n<p>Serviceability deserves special attention. Filter fabrics wear out over time and require replacement. An easy-to-maintain design reduces downtime and maintenance costs. Automatic cleaning system extends cleaning intervals and reduces manual work.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How is the size and capacity of the bag filter determined?<\/h2>\n\n\n\n<p>The size of the filter is calculated on the basis of the required air volume and the appropriate filtering rate for the filter cloth. The filtration rate is expressed in metres per minute and describes the air flow rate through the filter cloth. A typical filtration rate varies between 1 and 3 metres per minute depending on the material and operating conditions.<\/p>\n\n\n\n<p>The required filtration area is obtained by dividing the air flow by the appropriate filtration rate. For example, a flow rate of 300 cubic metres per minute and a filtration velocity of 2 metres would require 150 square metres of filtration area. This area is the total area of the bag filters.<\/p>\n\n\n\n<p>The material properties influence the appropriate filtration rate. Fine and sticky materials require lower speeds to prevent the filter fabrics from clogging too quickly. Coarser and more easily cleanable materials allow higher speeds.<\/p>\n\n\n\n<p>The pressure drop through the filter is another important factor in sizing. The pressure drop in a clean filter is small, but increases as the material accumulates on the fabric surface. Automatic cleaning keeps the pressure drop under control and maintains the filtering capacity.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is the difference between the different types of hose filters?<\/h2>\n\n\n\n<p>Bag filters differ in terms of cleaning mechanism, design and filter materials. The most common cleaning method is pulse pressure spraying, where compressed air is blown in short pulses into the filter hoses. This shakes the material off the fabric surface and drops it back into the process or collection tank.<\/p>\n\n\n\n<p>Filter fabrics are made of different materials depending on the conditions of use. Polyester fabrics are suitable for most normal applications, while special materials such as PTFE or aramid can withstand higher temperatures or aggressive chemicals. Surface treatment of the fabric can improve cleanability and prolong service life.<\/p>\n\n\n\n<p>The design of the strainers varies in size and number of tubes. Small units may contain a few tubes, while large industrial filters contain hundreds of tubes. The modular design allows capacity to be increased as needed.<\/p>\n\n\n\n<p>EMJET silo filters represent a standardised solution, suitable for both new and existing systems. Standard sizes simplify design and access to spare parts. The robust design can withstand pressure fluctuations caused by pneumatic transport, which is particularly important in intensive industrial applications.<\/p>\n\n\n\n<p>Choosing the right filter directly affects the reliability and cost-effectiveness of the process. Careful sizing and material selection will ensure that the filter meets both environmental regulations and production requirements over the long term.<\/p>","protected":false},"excerpt":{"rendered":"<p>The choice of a dust filter depends on the particle size of the material being handled, airflows, and operating conditions. Correct sizing ensures efficient dust removal in pneumatic conveying, protects equipment, and meets environmental regulations. In this guide, we will go through the key selection criteria, from material properties to capacity calculation and the differences between various filter types, so that you can find a suitable silo filter for your process.<\/p>","protected":false},"featured_media":2834,"menu_order":0,"template":"","class_list":["post-10391","article","type-article","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/kopar.fi\/en\/wp-json\/wp\/v2\/article\/10391","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kopar.fi\/en\/wp-json\/wp\/v2\/article"}],"about":[{"href":"https:\/\/kopar.fi\/en\/wp-json\/wp\/v2\/types\/article"}],"version-history":[{"count":2,"href":"https:\/\/kopar.fi\/en\/wp-json\/wp\/v2\/article\/10391\/revisions"}],"predecessor-version":[{"id":11818,"href":"https:\/\/kopar.fi\/en\/wp-json\/wp\/v2\/article\/10391\/revisions\/11818"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kopar.fi\/en\/wp-json\/wp\/v2\/media\/2834"}],"wp:attachment":[{"href":"https:\/\/kopar.fi\/en\/wp-json\/wp\/v2\/media?parent=10391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}